COUNTY REPORT IA

Warren County, Iowa

14 ZIP codes · Home Safety Score unavailable · 0 of 14 tracked ZIP records scored · Updated

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:

Unavailable
0 of 14 tracked ZIP records scored
14
ZIP Codes
$242K
Median Home Value
$1,879
Avg Remediation (78% of home value)

ZIP Code Risk Map

Water Quality Map: Warren County, Iowa

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 12.2 (asthma 9.7%, diabetes 9.7%)

Estimated additional annual cost per homeowner: $756, driven primarily by flood

61.3% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 9.7% (national: 8.9%)
Diabetes 9.7% (national: 10.5%)
Obesity 38.7% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1975
Median Build Year
61.3%
Pre-1978 Housing
48/100
Infrastructure Stress Indicator
71%
ZIPs with High Infrastructure Stress
High
Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $756

Flood $267/yr
Energy Code Gap $231/yr
Water Infrastructure $221/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

21,607 housing units in Warren County

Pre-1940 13%
1940–1959 8%
1960–1979 26%
1980–1999 20%
2000+ 33%

Source: U.S. Census Bureau ACS B25034 (Year Structure Built).

Water Safety Affordability

How much it costs to fix water issues relative to home values in Warren County

$242K
Median Home Value
$1,879
Est. Remediation Cost
0.8%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Warren County, representing a small fraction of property value.

Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.

Health Outcomes vs National Average

CDC PLACES data for Warren County residents

Asthma 9.7% (US avg: 8.9%)
Diabetes 9.7% (US avg: 11%)
Obesity 38.7% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems serving Warren County

8 community water systems serving Warren County.

Show all 8 water systems

9 total water systems serve Warren County.

Systems with the most violations in Warren County

2 water systems with recorded EPA violations.

All ZIP Codes in Warren County

14 ZIP codes tracked in Warren County.

# ZIP Code City Safety Score Grade Violations Home Value
1 50001 Ackworth 2 $352K
2 50047 Carlisle 5 $223K
3 50061 Cumming 0 $517K
4 50118 Hartford 2 $177K
5 50125 Indianola 2 $249K
6 50139 Lacona 2 $138K
7 50145 Liberty Center $233K
8 50160 Martensdale $176K
9 50166 Milo 2 $236K
10 50210 New Virginia $314K
11 50211 Norwalk 0 $294K
12 50229 Prole $365K
13 50240 Saint Charles $297K
14 50241 Saint Marys $169K

Recommended Buyer Guides for Warren County

While many sites publish identical guide lists across every county they cover, the selection here changes by location - driven by the EPA, NSF, FEMA, and CDC datasets that describe the actual conditions documented for this jurisdiction in the federal record.

Overview

Warren County in Iowa covers 14 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.

6 of 8 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.

← Back to Iowa Home Safety Profile

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

How many water systems serve Warren County?
Warren County is served by 9 public water systems that supply drinking water to residents across 14 ZIP codes.
What is the biggest environmental risk in Warren County?
The primary environmental risk factor in Warren County is flood. This contributes to an estimated additional annual cost of $756 per homeowner.
How old are homes in Warren County?
The median home build year in Warren County is 1975. 61.3% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.

How to cite this page

APA ZipCheckup. (2026). Warren County, Iowa Home Safety Profile. https://zipcheckup.com/county/iowa/warren/
BibTeX
@misc{zipcheckup-county-iowa-warren,
  author = {{ZipCheckup}},
  title  = {{Warren County, Iowa Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/iowa/warren/}
}

Page version: August 2026.

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